should attest
Verbo regular: attest - attested- attested

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should attest
you should attest
he should attest
we should attest
you should attest
they should attest 	I should be attesting
you should be attesting
he should be attesting
we should be attesting
you should be attesting
they should be attesting	I should have attested
you should have attested
he should have attested
we should have attested
you should have attested
they should have attested	I should have been attesting
you should have been attesting
he should have been attesting
we should have been attesting
you should have been attesting
they should have been attesting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not attest
you should not attest
he should not attest
we should not attest
you should not attest
they should not attest 	I should not be attesting
you should not be attesting
he should not be attesting
we should not be attesting
you should not be attesting
they should not be attesting	I should not have attested
you should not have attested
he should not have attested
we should not have attested
you should not have attested
they should not have attested	I should not have been attesting
you should not have been attesting
he should not have been attesting
we should not have been attesting
you should not have been attesting
they should not have been attesting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I attest?
should you attest?
should he attest?
should we attest?
should you attest?
should they attest? 	should I be attesting?
should you be attesting?
should he be attesting?
should we be attesting?
should you be attesting?
should they be attesting? 	should I have attested?
should you have attested?
should he have attested?
should we have attested?
should you have attested?
should they have attested? 	should I have been attesting?
should you have been attesting?
should he have been attesting?
should we have been attesting?
should you have been attesting?
should they have been attesting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not attest?
should you not attest?
should he not attest?
should we not attest?
should you not attest?
should they not attest? 	should I not be attesting?
should you not be attesting?
should he not be attesting?
should we not be attesting?
should you not be attesting?
should they not be attesting? 	should I not have attested?
should you not have attested?
should he not have attested?
should we not have attested?
should you not have attested?
should they not have attested? 	should I not have been attesting?
should you not have been attesting?
should he not have been attesting?
should we not have been attesting?
should you not have been attesting?
should they not have been attesting?